hi. after all these discussions do you have any suggestions?should I open the housing and clean the iMac inside, maybe it is dusty. or replace the fans with miniature wind tunnel turbines:) the exterme card is the hottest part of my Mac, and after reconfiguring my express basestation it has became cooler, the only conclusion is that the card needs some settings, no repair, because it is working properly. the Xflight download took hours, and caused no problems the heat remained at constant 63-67°C

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